Introduce new extensible virtual categories for KDE
A lot of KDE Ports share MASTERSITES, LICENSE and so one, as they are
released as a bundle upstream, however, there was not really a clean
way to share this information.
Using these new categories, we can simplify the Makefiles for the diverse
KDE ports.
At the moment we support the virtual category
* kde-kde4
In the future, this will be extended to
* kde-frameworks
* kde-plasma
* kde-applications
PR: 213406
Differential Revision: https://reviews.freebsd.org/D7645
Exp-run by : antoine
Reviewed by: mat, rakuco
Approved by: portmgr (mat), rakuco (mentor)

Replace Mk/bsd.kde4.mk by Mk/Uses/kde.mk in preparation for KDE Frameworks and
Plasma5 ports
At the moment KDE ports use bsd.kde4.mk to handle their dependencies. When
working on the ports for KDE Frameworks and Plasma5 it seemed to be more
reasonable to create a new kde.mk instead of adding an bsd.kde5.mk.
The kde.mk in this review is a stripped down version of the one we are using in
the KDE Test repositories plasma5 branch [1] to only contain the parts relevant
to the current KDE4 ports in the portstree [2].
Changes to the KDE Ports needed by this:
Replace USE_KDE4 by USE_KDE [3]
Add USES=kde:4 [4]

Remove expired misc/kdehier4 and update all of its consumers to not reference it
any
longer. This is a no-op because KDE4_PREFIX is equal to LOCALBASE
Fix up properties for misc/kde4-l10n/files/bsd.l10n.mk to make svn happy.
PR: 209014 (partial)
Submitted by: myself
Approved by: portmgr (bapt)
Differential Revision: https://reviews.freebsd.org/D6542

Upgrade OpenEXR and ilmbase to 2.2.0.
GCC 4.2 in FreeBSD 8.X/9.X base is now too old to compile OpenEXR, so
GCC-based systems will upgrade to the default ports compiler (GCC 4.7
currently.)
Add two patches to OpenEXR to permit building it in a live system with
the older OpenEXR version installed. Bug report filed to upstream Github
at https://github.com/openexr/openexr/issues/130
Couple OpenEXR more tightly to ilmbase and require its exact .so
version.
Add UPDATING note, and bump PORTREVISION of all dependent ports.
Proto-STAGE hugin-devel, and mark it IGNORE because hugin is newer.
Approved by: portmgr (implicit for bumping PORTREVISION on unstaged ports)

Add kolourpaint 1.0.2, an easy-to-use paint program for KDE. Features include
undo/redo, more than a dozen tools, selections, transparent image editing and
zoom support (with an optional grid and thumbnail).